nj
Most popular questions and responses by nj
physics
A stationary bicycle is raised off the ground, and its front wheel (m = 1.3 kg) is rotating at an angular velocity of 12.3 rad/s (see the drawing). The front brake is then applied for 3.0 s, and the wheel slows down to 3.3 rad/s. Assume that all the mass
asked on April 19, 2016 
chemistry
A voltaic cell at 25oC consists of Mn/Mn2+ and Cd/Cd2+ halfcells with the initial concentrations [Mn2+] = 0.100 M and [Cd2+] = 0.0100 M. Use the Nernst equation to calculate E for this cell. Cd+2(aq) + 2e = Cd(s) . . . . . . Eo = 0.40 V Mn+2(aq) + 2e =
asked on November 30, 2008 
physics
A wrecking ball is hanging at rest from a crane when suddenly the cable breaks. The time it takes for the ball to fall halfway is 1.6 seconds. Find the time it takes for the ball to fall from rest all the way to the ground.
asked on September 16, 2008 
physics
A rocket is used to place a synchronous satellite in orbit about the earth. What is the speed of the satellite in orbit?
asked on October 1, 2008 
physics
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steampowered catapult. The thrust of its engines is 2.4 x 10^5 N. In being launched from rest it moves through a distance of 87 m and has a kinetic energy of 5.0 x
asked on October 15, 2008 
physics
The drawing shows a jet engine suspended beneath the wing of an airplane. The weight W with arrow of the engine is 11900 N and acts as shown in the drawing. In flight the engine produces a thrust T with arrow of 64500 N that is parallel to the ground. The
asked on April 17, 2016 
math
Econocar offers two plans for oneweek rentals of a compact car. A rate of $295 per week includes the first 1000 km. Extra distance costs 15 cents per kilometre. A weekly rate of $389 allows unlimited driving. Rounded to the nearest kilometre, beyond what
asked on May 3, 2014 
math
The retail price of a pair of skis consists of the wholesale cost to the retailer plus the retailer's markup. If skis retailing for $712 are marked up by 60% of the wholesale cost, what is that wholesale cost?
asked on May 3, 2014 
physics
A 9.94m ladder with a mass of 21.6 kg lies flat on the ground. A painter grabs the top end of the ladder and pulls straight upward with a force of 226 N. At the instant the top of the ladder leaves the ground, the ladder experiences an angular
asked on April 19, 2016 
Physics
1. How much work must be done to stop a 1750 kg truck traveling at 110.0 km/h?
asked on May 1, 2013 
Math (Trig)
Find the indicated ratios in the triangle. Right triangle with a height of 2.56cm length of 4.65cm and hypotenuse of 5.31cm a. tan A b. cos C c. sin C How do I figure this out?
asked on January 7, 2013 
Physics
The average emf induced in the secondary coil is 0.12 V when the current in the primary coil changes from 3.8 to 1.1 A in 0.14 s. What is the mutual inductance of the coils?
asked on March 6, 2009 
Algebra 2
How do I write equations for geometric sequences? example question: 1, 3/2, 9/4, 27/8 an= a(n1) * r^n where r is the value of dividing one term by the term before. For instance, in the above, ao= 1, r= a3/a2= (27/8)/(9/4)= 3/2 a1= 1*3/2 a3= 1*(3/2)^3=
asked on April 18, 2007 
Math
The angle of elevation of the sun is 22 degrees. How long is the shadow of a 15m tree, to the nearest metre?
asked on January 7, 2013 
Math Trig
I have to find the x (bottom length of the triangle) in a right triangle. angle A is 33.9 degrees angle B is 90 degrees and the height of the triangle is 3.3cm What formula do I use to figure out this question?
asked on January 7, 2013 
math
Square cushion measures 65 cm by 65cm and 10 cm thick. I got help of the measurements from 1:20 scale to 3.25 by 3.25 by .5cm I drew out and labeled them. I need help with the next step. The square cushion is made of 3 component parts a top bottom and
asked on January 7, 2013 
chemistry
The following cell was observed to have an emf of 2.25 volts at 25.0oC : Zn(s)  Zn2+(aq, 0.143 M)  Cl2(g, 0.548 atm)  Cl(aq, ?M)  Pt(s) . Use tables of standard reduction potentials in Petrucci to calculate the concentration of chloride ion in the
asked on November 30, 2008 
English
how do I analyze a story using tactics such as Formalist Biographical Psychological Historical Marxist New Historical Cultural Gender Feminist GLBTBC Mythology Reader response I have to analyze the story using any one of the tactics listed above.
asked on March 21, 2015 
Math
Square cushion measures 65 cm by 65cm and 10 cm thick. I got help of the measurements from 1:20 scale to 3.25 by 3.25 by .5cm I drew out and labeled them. I need help with the next step. The square cushion is made of 3 component parts a top bottom and
asked on January 7, 2013 
Math
A square cushion measures 65 cm by 65 cm and 10 cm thick. Using a scale of 1:20 draw views of the cushion and label them with their measurements. Can someone help me with this? How would I go about drawing them and using the scale for measurements?
asked on January 7, 2013 
Math
3(2/3 + 4/9) The 2/3 and 4/9 are fractions. How do I figure this out?
asked on October 16, 2012 
calculus ab
What is the integral of sin4xcos4x dx?
asked on January 8, 2009

Science
I used jezzmin answers and got 12 out 12
posted on March 12, 2018 
math
I am sooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
posted on November 25, 2017 
Statistical Math
sfds
posted on November 8, 2017 
statictics
90
posted on April 22, 2017 
Physics
Nj
posted on February 11, 2017 
Math
more people moved than expected because 4% of 200 is 8 since there is 12 people who moved out of 7th grade. and 8 people are expected to move by the end of the year
posted on August 5, 2016 
Math
2x6
posted on April 13, 2016 
English
Im analyzing "Bartleby, the Scrivener" by Herman Melville. I think that was a typo. It should have been LGBT. Thank you for respondinMs Sue.
posted on March 21, 2015 
math
Calculate the monthly finance charge for the credit card transaction. Assume that it takes 10 days for a payment to be received and recorded, and that the month is 30 days long. (Round your answers to the nearest cent.) $200 balance, 14%, $50 payment (a)
posted on November 21, 2014 
HELP PLEASE!!!!!
his horses name is Tuesday.
posted on January 7, 2013 
math
8 girls If there are 20 children and for every 3 boys there is 2 girls that's 5 children. 5x4 = 20 so in every 5 kids there is 2 girls. So then do 4x2 = 8
posted on January 7, 2013 
Math (intergrated algebra)
769.69 cubic inches You can solve this by doing Radius x radius x height x pi 7 x 7 x 5 x 3.14159
posted on January 7, 2013 
Math
thank you
posted on January 7, 2013 
Math(Geometry)
I just staarted Geometry this year and i was stuck on those same questions... thanks to the ppl who post ansewers... it was a BIG help... :)
posted on August 21, 2008